diff --git a/app/build.gradle b/app/build.gradle
index ccbb5fa..d8050bc 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -68,16 +68,18 @@ android {
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            resValue "string", "debug_visibility", "gone"
             manifestPlaceholders = [
                     appIcon: "@drawable/icon",
-                    appIconRound: "@drawable/icon"
+                    appIconRound: "@drawable/icon",
             ]
         }
         debug {
             applicationIdSuffix ".debug"
+            resValue "string", "debug_visibility", "visible"
             manifestPlaceholders = [
                     appIcon: "@drawable/icon_debug",
-                    appIconRound: "@drawable/icon_debug"
+                    appIconRound: "@drawable/icon_debug",
             ]
         }
     }
diff --git a/app/src/main/java/org/vostan/banvor/PuzzleBoardFragment.java b/app/src/main/java/org/vostan/banvor/PuzzleBoardFragment.java
index 6ca0ec0..92e3381 100644
--- a/app/src/main/java/org/vostan/banvor/PuzzleBoardFragment.java
+++ b/app/src/main/java/org/vostan/banvor/PuzzleBoardFragment.java
@@ -60,6 +60,11 @@ public class PuzzleBoardFragment extends Fragment
 			public void onTouch() {
 			}
 		});
+		binding.btnTest.setOnClickListener((View.OnClickListener) view4 -> {
+			createNextLevelDialog((d, w) -> {
+				initAndShowCurrentPuzzle();
+			}).show();
+		});
 		binding.btnPrev.setOnClickListener((View.OnClickListener) view1 -> {
 			gameState.setCurrentLevel(gameState.getCurrentLevel()-1);
 			PuzzleBoardFragment.this.initAndShowCurrentPuzzle();
diff --git a/app/src/main/res/layout/fragment_puzzle_board.xml b/app/src/main/res/layout/fragment_puzzle_board.xml
index 23b5fa4..968a087 100644
--- a/app/src/main/res/layout/fragment_puzzle_board.xml
+++ b/app/src/main/res/layout/fragment_puzzle_board.xml
@@ -54,6 +54,18 @@
 				android:layout_height="match_parent"
 				android:layout_weight="1" />
 
+			<Button
+				android:id="@+id/btn_test"
+				android:layout_width="wrap_content"
+				android:layout_height="match_parent"
+				android:layout_gravity="center_vertical"
+				android:layout_weight="0"
+				android:background="@color/transparent"
+				android:scaleType="fitCenter"
+				android:visibility="visible"
+				android:text="test" />
+
+
 			<ImageButton
 				android:id="@+id/btn_prev"
 				android:layout_width="wrap_content"